I have a late model 1973 Lo-Boy 154 and I am curious as to how do you top off or check fluid lever for the hydraulic system? I am getting noise from the pump location at the motor that seems to be from low fluid. does this feed off the rear end oil and what type of fluid is used? You can email me at dlange59@gmail.com directly.

Look at the rear of the tractor. On the transmission there is a pipe plug for filling the transmission. The fluid should come to the bottom of this pipe plug while the tractor is sitting flat. (Fill trans with Hytran until it flows out of this plug)